Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usage
Numerous studies have been conducted to assess the effect of using a V-cut twisted tape turbulator, bubble injection method, and CuO-water nanofluid as a working fluid separately on the hydrothermal parameters. For the first time, the current study aimed to comprehensively evaluate the effect of the...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23002046 |
| _version_ | 1797832698727759872 |
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| author | Zhang Jie Salina Binti Muhamad Azher M. Abed Ahmed Deifalla S.P. Ghoushchi Izyani Mat Rusni |
| author_facet | Zhang Jie Salina Binti Muhamad Azher M. Abed Ahmed Deifalla S.P. Ghoushchi Izyani Mat Rusni |
| author_sort | Zhang Jie |
| collection | DOAJ |
| description | Numerous studies have been conducted to assess the effect of using a V-cut twisted tape turbulator, bubble injection method, and CuO-water nanofluid as a working fluid separately on the hydrothermal parameters. For the first time, the current study aimed to comprehensively evaluate the effect of the simultaneous use of these three methods on the effectiveness, friction factor, and thermal performance enhancement factor of a double-tube heat exchanger. Experiments were conducted with Reynolds numbers ranging from 7200 to 14500. Air was injected into the working fluid with a flow rate of 2 to 6 L/min. A turbulator with different geometry was also inserted in the inner tube. The results showed that using the methods separately increased effectiveness by up to 81%, while their simultaneous use increased the effectiveness to 2.36 times that of the plain tube. The friction factor in the presence of these three methods is up to 1.11 to 14.36 times that of a plain tube heat exchanger, respectively. In addition, the results showed that combining these three methods significantly affected thermal performance enhancement factor (TEF), increasing it to 1.46. |
| first_indexed | 2024-04-09T14:13:07Z |
| format | Article |
| id | doaj.art-6e66febb765f42d38a11ca871056852c |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-09T14:13:07Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-6e66febb765f42d38a11ca871056852c2023-05-06T04:37:46ZengElsevierCase Studies in Thermal Engineering2214-157X2023-05-0145102898Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usageZhang Jie0Salina Binti Muhamad1Azher M. Abed2Ahmed Deifalla3S.P. Ghoushchi4Izyani Mat Rusni5Jiangsu Shipping College, Nantong, 226010, China; Universiti Selangor, Selangor, 45600, MalaysiaUniversiti Selangor, Selangor, 45600, MalaysiaAir Conditioning and Refrigeration Technologies Engineering Department, Al-Mustaqbal University College, Babylon, 51001, Iraq; Corresponding author.Full Professor Future University in Egypt, South Teseen, New Cairo, 11835, EgyptSustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Corresponding author.Universiti Selangor, Selangor, 45600, MalaysiaNumerous studies have been conducted to assess the effect of using a V-cut twisted tape turbulator, bubble injection method, and CuO-water nanofluid as a working fluid separately on the hydrothermal parameters. For the first time, the current study aimed to comprehensively evaluate the effect of the simultaneous use of these three methods on the effectiveness, friction factor, and thermal performance enhancement factor of a double-tube heat exchanger. Experiments were conducted with Reynolds numbers ranging from 7200 to 14500. Air was injected into the working fluid with a flow rate of 2 to 6 L/min. A turbulator with different geometry was also inserted in the inner tube. The results showed that using the methods separately increased effectiveness by up to 81%, while their simultaneous use increased the effectiveness to 2.36 times that of the plain tube. The friction factor in the presence of these three methods is up to 1.11 to 14.36 times that of a plain tube heat exchanger, respectively. In addition, the results showed that combining these three methods significantly affected thermal performance enhancement factor (TEF), increasing it to 1.46.http://www.sciencedirect.com/science/article/pii/S2214157X23002046Double tube heat exchangerV-cut twisted tapeBubble injection methodNano fluidEffectivenessPressure drop |
| spellingShingle | Zhang Jie Salina Binti Muhamad Azher M. Abed Ahmed Deifalla S.P. Ghoushchi Izyani Mat Rusni Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usage Case Studies in Thermal Engineering Double tube heat exchanger V-cut twisted tape Bubble injection method Nano fluid Effectiveness Pressure drop |
| title | Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usage |
| title_full | Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usage |
| title_fullStr | Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usage |
| title_full_unstemmed | Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usage |
| title_short | Hydrothermal parameters enhancement of a DTHEX with simultaneous V-cut twisted tape turbulator and air/CuO-water flow usage |
| title_sort | hydrothermal parameters enhancement of a dthex with simultaneous v cut twisted tape turbulator and air cuo water flow usage |
| topic | Double tube heat exchanger V-cut twisted tape Bubble injection method Nano fluid Effectiveness Pressure drop |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23002046 |
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